7750a5f106
- 添加同名文件检测功能，当上传文件时检查知识库中是否存在同名文件并提示用户 - 重构文件存储逻辑，使用MinIO作为主要存储后端，支持本地和MinIO文件的统一处理 - 优化文件下载功能，根据文件路径类型自动选择本地或MinIO下载方式 - 新增同名文件列表展示组件，支持下载和删除操作 Co-authored-by: YuChuan <xerrors@qq.com>
1245 lines
50 KiB
Python
1245 lines
50 KiB
Python
import aiofiles
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import asyncio
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import os
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import traceback
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import textwrap
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from collections.abc import Mapping
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from urllib.parse import quote, unquote
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from fastapi import APIRouter, Body, Depends, File, HTTPException, Query, Request, UploadFile
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from fastapi.responses import FileResponse
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from starlette.responses import StreamingResponse
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from src.storage.db.models import User
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from server.utils.auth_middleware import get_admin_user
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from server.services.tasker import TaskContext, tasker
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from src import config, knowledge_base
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from src.knowledge.indexing import SUPPORTED_FILE_EXTENSIONS, is_supported_file_extension, process_file_to_markdown
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from src.knowledge.utils import calculate_content_hash, merge_processing_params
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from src.models.embed import test_embedding_model_status, test_all_embedding_models_status
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from src.storage.minio.client import aupload_file_to_minio, get_minio_client, StorageError
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from src.utils import logger
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knowledge = APIRouter(prefix="/knowledge", tags=["knowledge"])
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media_types = {
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".pdf": "application/pdf",
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".docx": "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
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".doc": "application/msword",
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".txt": "text/plain",
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".md": "text/markdown",
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".json": "application/json",
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".csv": "text/csv",
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".xlsx": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
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".xls": "application/vnd.ms-excel",
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".pptx": "application/vnd.openxmlformats-officedocument.presentationml.presentation",
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".ppt": "application/vnd.ms-powerpoint",
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".jpg": "image/jpeg",
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".jpeg": "image/jpeg",
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".png": "image/png",
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".gif": "image/gif",
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".bmp": "image/bmp",
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".svg": "image/svg+xml",
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".zip": "application/zip",
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".rar": "application/x-rar-compressed",
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".7z": "application/x-7z-compressed",
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".tar": "application/x-tar",
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".gz": "application/gzip",
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".html": "text/html",
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".htm": "text/html",
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".xml": "text/xml",
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".css": "text/css",
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".js": "application/javascript",
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".py": "text/x-python",
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".java": "text/x-java-source",
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".cpp": "text/x-c++src",
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".c": "text/x-csrc",
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".h": "text/x-chdr",
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".hpp": "text/x-c++hdr",
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}
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# =============================================================================
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# === 数据库管理分组 ===
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# =============================================================================
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@knowledge.get("/databases")
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async def get_databases(current_user: User = Depends(get_admin_user)):
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"""获取所有知识库"""
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try:
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database = knowledge_base.get_databases()
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return database
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except Exception as e:
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logger.error(f"获取数据库列表失败 {e}, {traceback.format_exc()}")
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return {"message": f"获取数据库列表失败 {e}", "databases": []}
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@knowledge.post("/databases")
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async def create_database(
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database_name: str = Body(...),
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description: str = Body(...),
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embed_model_name: str = Body(...),
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kb_type: str = Body("lightrag"),
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additional_params: dict = Body({}),
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llm_info: dict = Body(None),
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current_user: User = Depends(get_admin_user),
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):
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"""创建知识库"""
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logger.debug(
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f"Create database {database_name} with kb_type {kb_type}, "
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f"additional_params {additional_params}, llm_info {llm_info}, "
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f"embed_model_name {embed_model_name}"
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)
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try:
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additional_params = {**(additional_params or {})}
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additional_params["auto_generate_questions"] = False # 默认不生成问题
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def normalize_reranker_config(kb: str, params: dict) -> None:
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reranker_cfg = params.get("reranker_config")
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if kb not in {"chroma", "milvus"}:
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if kb == "lightrag" and reranker_cfg:
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logger.warning("LightRAG does not support reranker, ignoring reranker_config")
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params.pop("reranker_config", None)
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return
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if not reranker_cfg:
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params["reranker_config"] = {
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"enabled": False,
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"model": "",
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"recall_top_k": 50,
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"final_top_k": 10,
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}
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return
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if not isinstance(reranker_cfg, Mapping):
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raise HTTPException(status_code=400, detail="reranker_config must be an object")
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reranker_enabled = bool(reranker_cfg.get("enabled", False))
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model = (reranker_cfg.get("model") or "").strip()
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recall_top_k = max(1, int(reranker_cfg.get("recall_top_k", 50)))
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final_top_k = max(1, int(reranker_cfg.get("final_top_k", 10)))
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if reranker_enabled:
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if not model:
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raise HTTPException(status_code=400, detail="reranker_config.model is required when enabled")
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if model not in config.reranker_names:
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raise HTTPException(status_code=400, detail=f"Unsupported reranker model: {model}")
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if final_top_k > recall_top_k:
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logger.warning(
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f"final_top_k ({final_top_k}) cannot exceed recall_top_k ({recall_top_k}); "
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"adjusting recall_top_k to match final_top_k"
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)
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recall_top_k = final_top_k
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else:
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model = model if model in config.reranker_names else ""
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params["reranker_config"] = {
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"enabled": reranker_enabled,
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"model": model,
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"recall_top_k": recall_top_k,
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"final_top_k": final_top_k,
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}
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normalize_reranker_config(kb_type, additional_params)
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embed_info = config.embed_model_names[embed_model_name]
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database_info = await knowledge_base.create_database(
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database_name, description, kb_type=kb_type, embed_info=embed_info, llm_info=llm_info, **additional_params
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)
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# 需要重新加载所有智能体，因为工具刷新了
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from src.agents import agent_manager
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await agent_manager.reload_all()
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return database_info
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except Exception as e:
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logger.error(f"创建数据库失败 {e}, {traceback.format_exc()}")
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return {"message": f"创建数据库失败 {e}", "status": "failed"}
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@knowledge.get("/databases/{db_id}")
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async def get_database_info(db_id: str, current_user: User = Depends(get_admin_user)):
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"""获取知识库详细信息"""
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database = knowledge_base.get_database_info(db_id)
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if database is None:
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raise HTTPException(status_code=404, detail="Database not found")
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return database
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@knowledge.put("/databases/{db_id}")
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async def update_database_info(
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db_id: str,
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name: str = Body(...),
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description: str = Body(...),
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llm_info: dict = Body(None),
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additional_params: dict = Body({}), # Now accepts a dict
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current_user: User = Depends(get_admin_user),
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):
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"""更新知识库信息"""
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logger.debug(
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f"Update database {db_id} info: {name}, {description}, llm_info: {llm_info}, "
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f"additional_params: {additional_params}"
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)
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try:
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database = await knowledge_base.update_database(
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db_id,
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name,
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description,
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llm_info,
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additional_params=additional_params, # Pass the dict to the manager
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)
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return {"message": "更新成功", "database": database}
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except Exception as e:
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logger.error(f"更新数据库失败 {e}, {traceback.format_exc()}")
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raise HTTPException(status_code=400, detail=f"更新数据库失败: {e}")
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@knowledge.delete("/databases/{db_id}")
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async def delete_database(db_id: str, current_user: User = Depends(get_admin_user)):
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"""删除知识库"""
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logger.debug(f"Delete database {db_id}")
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try:
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await knowledge_base.delete_database(db_id)
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# 需要重新加载所有智能体，因为工具刷新了
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from src.agents import agent_manager
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await agent_manager.reload_all()
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return {"message": "删除成功"}
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except Exception as e:
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logger.error(f"删除数据库失败 {e}, {traceback.format_exc()}")
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raise HTTPException(status_code=400, detail=f"删除数据库失败: {e}")
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@knowledge.get("/databases/{db_id}/export")
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async def export_database(
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db_id: str,
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format: str = Query("csv", enum=["csv", "xlsx", "md", "txt"]),
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include_vectors: bool = Query(False, description="是否在导出中包含向量数据"),
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current_user: User = Depends(get_admin_user),
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):
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"""导出知识库数据"""
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logger.debug(f"Exporting database {db_id} with format {format}")
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try:
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file_path = await knowledge_base.export_data(db_id, format=format, include_vectors=include_vectors)
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if not os.path.exists(file_path):
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raise HTTPException(status_code=404, detail="Exported file not found.")
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media_type = media_types.get(format, "application/octet-stream")
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return FileResponse(path=file_path, filename=os.path.basename(file_path), media_type=media_type)
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except NotImplementedError as e:
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logger.warning(f"A disabled feature was accessed: {e}")
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raise HTTPException(status_code=501, detail=str(e))
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except Exception as e:
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logger.error(f"导出数据库失败 {e}, {traceback.format_exc()}")
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raise HTTPException(status_code=500, detail=f"导出数据库失败: {e}")
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# =============================================================================
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# === 文档管理分组 ===
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# =============================================================================
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@knowledge.post("/databases/{db_id}/documents")
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async def add_documents(
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db_id: str, items: list[str] = Body(...), params: dict = Body(...), current_user: User = Depends(get_admin_user)
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):
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"""添加文档到知识库"""
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logger.debug(f"Add documents for db_id {db_id}: {items} {params=}")
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content_type = params.get("content_type", "file")
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# 禁止 URL 解析与入库
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if content_type == "url":
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raise HTTPException(status_code=400, detail="URL 文档上传与解析已禁用")
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# 安全检查：验证文件路径
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if content_type == "file":
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from src.knowledge.utils.kb_utils import validate_file_path
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for item in items:
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try:
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validate_file_path(item, db_id)
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except ValueError as e:
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raise HTTPException(status_code=403, detail=str(e))
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async def run_ingest(context: TaskContext):
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await context.set_message("任务初始化")
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await context.set_progress(5.0, "准备处理文档")
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total = len(items)
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processed_items = []
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try:
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# 逐个处理文档并更新进度
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for idx, item in enumerate(items, 1):
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await context.raise_if_cancelled()
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# 更新进度
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progress = 5.0 + (idx / total) * 90.0 # 5% ~ 95%
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await context.set_progress(progress, f"正在处理第 {idx}/{total} 个文档")
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try:
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result = await knowledge_base.add_content(db_id, [item], params=params)
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processed_items.extend(result)
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except Exception as doc_error:
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logger.error(f"Document processing failed for {item}: {doc_error}")
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error_type = "timeout" if isinstance(doc_error, TimeoutError) else "processing_error"
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error_msg = "处理超时" if isinstance(doc_error, TimeoutError) else "处理失败"
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processed_items.append(
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{
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"item": item,
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"status": "failed",
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"error": f"{error_msg}: {str(doc_error)}",
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"error_type": error_type,
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}
|
||
)
|
||
|
||
except asyncio.CancelledError:
|
||
await context.set_progress(100.0, "任务已取消")
|
||
raise
|
||
except Exception as task_error:
|
||
# 处理整体任务的其他异常（如内存不足、网络错误等）
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logger.exception(f"Task processing failed: {task_error}")
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await context.set_progress(100.0, f"任务处理失败: {str(task_error)}")
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# 将所有未处理的文档标记为失败
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||
for item in items[len(processed_items) :]:
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processed_items.append(
|
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{
|
||
"item": item,
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||
"status": "failed",
|
||
"error": f"任务失败: {str(task_error)}",
|
||
"error_type": "task_failed",
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||
}
|
||
)
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raise
|
||
|
||
item_type = "URL" if content_type == "url" else "文件"
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||
failed_count = len([_p for _p in processed_items if _p.get("status") == "failed"])
|
||
success_items = [_p for _p in processed_items if _p.get("status") == "done"]
|
||
summary = {
|
||
"db_id": db_id,
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||
"item_type": item_type,
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||
"submitted": len(processed_items),
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||
"failed": failed_count,
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||
}
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||
message = f"{item_type}处理完成，失败 {failed_count} 个" if failed_count else f"{item_type}处理完成"
|
||
await context.set_result(summary | {"items": processed_items})
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await context.set_progress(100.0, message)
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return summary | {"items": processed_items}
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|
||
try:
|
||
task = await tasker.enqueue(
|
||
name=f"知识库文档处理({db_id})",
|
||
task_type="knowledge_ingest",
|
||
payload={
|
||
"db_id": db_id,
|
||
"items": items,
|
||
"params": params,
|
||
"content_type": content_type,
|
||
},
|
||
coroutine=run_ingest,
|
||
)
|
||
return {
|
||
"message": "任务已提交，请在任务中心查看进度",
|
||
"status": "queued",
|
||
"task_id": task.id,
|
||
}
|
||
except Exception as e: # noqa: BLE001
|
||
logger.error(f"Failed to enqueue {content_type}s: {e}, {traceback.format_exc()}")
|
||
return {"message": f"Failed to enqueue task: {e}", "status": "failed"}
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/documents/{doc_id}")
|
||
async def get_document_info(db_id: str, doc_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""获取文档详细信息（包含基本信息和内容信息）"""
|
||
logger.debug(f"GET document {doc_id} info in {db_id}")
|
||
|
||
try:
|
||
info = await knowledge_base.get_file_info(db_id, doc_id)
|
||
return info
|
||
except Exception as e:
|
||
logger.error(f"Failed to get file info, {e}, {db_id=}, {doc_id=}, {traceback.format_exc()}")
|
||
return {"message": "Failed to get file info", "status": "failed"}
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/documents/{doc_id}/basic")
|
||
async def get_document_basic_info(db_id: str, doc_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""获取文档基本信息（仅元数据）"""
|
||
logger.debug(f"GET document {doc_id} basic info in {db_id}")
|
||
|
||
try:
|
||
info = await knowledge_base.get_file_basic_info(db_id, doc_id)
|
||
return info
|
||
except Exception as e:
|
||
logger.error(f"Failed to get file basic info, {e}, {db_id=}, {doc_id=}, {traceback.format_exc()}")
|
||
return {"message": "Failed to get file basic info", "status": "failed"}
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/documents/{doc_id}/content")
|
||
async def get_document_content(db_id: str, doc_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""获取文档内容信息（chunks和lines）"""
|
||
logger.debug(f"GET document {doc_id} content in {db_id}")
|
||
|
||
try:
|
||
info = await knowledge_base.get_file_content(db_id, doc_id)
|
||
return info
|
||
except Exception as e:
|
||
logger.error(f"Failed to get file content, {e}, {db_id=}, {doc_id=}, {traceback.format_exc()}")
|
||
return {"message": "Failed to get file content", "status": "failed"}
|
||
|
||
|
||
@knowledge.delete("/databases/{db_id}/documents/{doc_id}")
|
||
async def delete_document(db_id: str, doc_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""删除文档"""
|
||
logger.debug(f"DELETE document {doc_id} info in {db_id}")
|
||
try:
|
||
file_meta_info = await knowledge_base.get_file_basic_info(db_id, doc_id)
|
||
file_name = file_meta_info.get("meta", {}).get("filename")
|
||
|
||
# 尝试从MinIO删除文件，如果失败（例如旧知识库没有MinIO实例），则忽略
|
||
try:
|
||
minio_client = get_minio_client()
|
||
await minio_client.adelete_file("ref-" + db_id.replace("_", "-"), file_name)
|
||
logger.debug(f"成功从MinIO删除文件: {file_name}")
|
||
except Exception as minio_error:
|
||
logger.warning(f"从MinIO删除文件失败（可能是旧知识库）: {minio_error}")
|
||
|
||
# 无论MinIO删除是否成功，都继续从知识库删除
|
||
await knowledge_base.delete_file(db_id, doc_id)
|
||
return {"message": "删除成功"}
|
||
except Exception as e:
|
||
logger.error(f"删除文档失败 {e}, {traceback.format_exc()}")
|
||
raise HTTPException(status_code=400, detail=f"删除文档失败: {e}")
|
||
|
||
|
||
@knowledge.post("/databases/{db_id}/documents/rechunks")
|
||
async def rechunks_documents(
|
||
db_id: str, file_ids: list[str] = Body(...), params: dict = Body(...), current_user: User = Depends(get_admin_user)
|
||
):
|
||
"""重新分块文档"""
|
||
logger.debug(f"Rechunks documents for db_id {db_id}: {file_ids} {params=}")
|
||
|
||
async def run_rechunks(context: TaskContext):
|
||
await context.set_message("任务初始化")
|
||
await context.set_progress(5.0, "准备重新分块文档")
|
||
|
||
total = len(file_ids)
|
||
processed_items = []
|
||
|
||
try:
|
||
# 逐个处理文档并更新进度
|
||
for idx, file_id in enumerate(file_ids, 1):
|
||
await context.raise_if_cancelled()
|
||
|
||
# 更新进度
|
||
progress = 5.0 + (idx / total) * 90.0 # 5% ~ 95%
|
||
await context.set_progress(progress, f"正在重新分块第 {idx}/{total} 个文档")
|
||
|
||
# 获取文档元数据中的处理参数
|
||
metadata_params = None
|
||
try:
|
||
file_info = await knowledge_base.get_file_basic_info(db_id, file_id)
|
||
metadata_params = file_info.get("meta", {}).get("processing_params")
|
||
except Exception as meta_error:
|
||
logger.warning(f"Failed to get metadata for file {file_id}: {meta_error}")
|
||
|
||
# 合并参数：优先使用请求参数，缺失时使用元数据参数
|
||
merged_params = merge_processing_params(metadata_params, params)
|
||
|
||
# 处理单个文档
|
||
try:
|
||
result = await knowledge_base.update_content(db_id, [file_id], params=merged_params)
|
||
processed_items.extend(result)
|
||
except Exception as doc_error:
|
||
# 处理单个文档处理的所有异常（包括超时）
|
||
logger.error(f"Document rechunking failed for {file_id}: {doc_error}")
|
||
|
||
# 判断是否是超时异常
|
||
error_type = "timeout" if isinstance(doc_error, TimeoutError) else "processing_error"
|
||
error_msg = "处理超时" if isinstance(doc_error, TimeoutError) else "处理失败"
|
||
|
||
processed_items.append(
|
||
{
|
||
"file_id": file_id,
|
||
"status": "failed",
|
||
"error": f"{error_msg}: {str(doc_error)}",
|
||
"error_type": error_type,
|
||
}
|
||
)
|
||
|
||
except asyncio.CancelledError:
|
||
await context.set_progress(100.0, "任务已取消")
|
||
raise
|
||
except Exception as task_error:
|
||
# 处理整体任务的其他异常（如内存不足、网络错误等）
|
||
logger.exception(f"Task rechunking failed: {task_error}")
|
||
await context.set_progress(100.0, f"任务处理失败: {str(task_error)}")
|
||
# 将所有未处理的文档标记为失败
|
||
for file_id in file_ids[len(processed_items) :]:
|
||
processed_items.append(
|
||
{
|
||
"file_id": file_id,
|
||
"status": "failed",
|
||
"error": f"任务失败: {str(task_error)}",
|
||
"error_type": "task_failed",
|
||
}
|
||
)
|
||
raise
|
||
|
||
failed_count = len([_p for _p in processed_items if _p.get("status") == "failed"])
|
||
summary = {
|
||
"db_id": db_id,
|
||
"submitted": len(processed_items),
|
||
"failed": failed_count,
|
||
}
|
||
message = f"文档重新分块完成，失败 {failed_count} 个" if failed_count else "文档重新分块完成"
|
||
await context.set_result(summary | {"items": processed_items})
|
||
await context.set_progress(100.0, message)
|
||
return summary | {"items": processed_items}
|
||
|
||
try:
|
||
task = await tasker.enqueue(
|
||
name=f"文档重新分块({db_id})",
|
||
task_type="knowledge_rechunks",
|
||
payload={
|
||
"db_id": db_id,
|
||
"file_ids": file_ids,
|
||
"params": params,
|
||
},
|
||
coroutine=run_rechunks,
|
||
)
|
||
return {
|
||
"message": "任务已提交，请在任务中心查看进度",
|
||
"status": "queued",
|
||
"task_id": task.id,
|
||
}
|
||
except Exception as e: # noqa: BLE001
|
||
logger.error(f"Failed to enqueue rechunks task: {e}, {traceback.format_exc()}")
|
||
return {"message": f"Failed to enqueue task: {e}", "status": "failed"}
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/documents/{doc_id}/download")
|
||
async def download_document(db_id: str, doc_id: str, request: Request, current_user: User = Depends(get_admin_user)):
|
||
"""下载原始文件 - 根据path类型选择本地或MinIO下载"""
|
||
logger.debug(f"Download document {doc_id} from {db_id}")
|
||
try:
|
||
file_info = await knowledge_base.get_file_basic_info(db_id, doc_id)
|
||
file_meta = file_info.get("meta", {})
|
||
|
||
# 获取文件路径和文件名
|
||
file_path = file_meta.get("path", "")
|
||
filename = file_meta.get("filename", "file")
|
||
logger.debug(f"File path from database: {file_path}")
|
||
logger.debug(f"Original filename from database: {filename}")
|
||
|
||
# 解码URL编码的文件名（如果有的话）
|
||
try:
|
||
decoded_filename = unquote(filename, encoding="utf-8")
|
||
logger.debug(f"Decoded filename: {decoded_filename}")
|
||
except Exception as e:
|
||
logger.debug(f"Failed to decode filename {filename}: {e}")
|
||
decoded_filename = filename # 如果解码失败，使用原文件名
|
||
|
||
_, ext = os.path.splitext(decoded_filename)
|
||
media_type = media_types.get(ext.lower(), "application/octet-stream")
|
||
|
||
# 根据path类型选择下载方式
|
||
from src.knowledge.utils.kb_utils import is_minio_url
|
||
if is_minio_url(file_path):
|
||
# MinIO下载
|
||
logger.debug(f"Downloading from MinIO: {file_path}")
|
||
|
||
try:
|
||
# 使用通用函数解析MinIO URL
|
||
from src.knowledge.utils.kb_utils import parse_minio_url
|
||
bucket_name, object_name = parse_minio_url(file_path)
|
||
|
||
logger.debug(f"Parsed bucket_name: {bucket_name}, object_name: {object_name}")
|
||
|
||
minio_client = get_minio_client()
|
||
|
||
# 直接使用解析出的完整对象名称下载
|
||
minio_response = await minio_client.adownload_response(
|
||
bucket_name=bucket_name,
|
||
object_name=object_name,
|
||
)
|
||
logger.debug(f"Successfully downloaded object: {object_name}")
|
||
|
||
except Exception as e:
|
||
logger.error(f"Failed to download MinIO file: {e}")
|
||
raise StorageError(f"下载文件失败: {e}")
|
||
|
||
# 创建流式生成器
|
||
async def minio_stream():
|
||
try:
|
||
while True:
|
||
chunk = await asyncio.to_thread(minio_response.read, 8192)
|
||
if not chunk:
|
||
break
|
||
yield chunk
|
||
finally:
|
||
minio_response.close()
|
||
minio_response.release_conn()
|
||
|
||
# 创建StreamingResponse
|
||
response = StreamingResponse(
|
||
minio_stream(),
|
||
media_type=media_type,
|
||
)
|
||
# 正确处理中文文件名的HTTP头部设置
|
||
try:
|
||
# 尝试使用ASCII编码（适用于英文文件名）
|
||
decoded_filename.encode("ascii")
|
||
# 如果成功，直接使用简单格式
|
||
response.headers["Content-Disposition"] = f'attachment; filename="{decoded_filename}"'
|
||
except UnicodeEncodeError:
|
||
# 如果包含非ASCII字符（如中文），使用RFC 2231格式
|
||
encoded_filename = quote(decoded_filename.encode("utf-8"))
|
||
response.headers["Content-Disposition"] = f"attachment; filename*=UTF-8''{encoded_filename}"
|
||
|
||
return response
|
||
|
||
else:
|
||
# 本地文件下载
|
||
logger.debug(f"Downloading from local filesystem: {file_path}")
|
||
|
||
if not os.path.exists(file_path):
|
||
raise StorageError(f"文件不存在: {file_path}")
|
||
|
||
# 获取文件大小
|
||
file_size = os.path.getsize(file_path)
|
||
|
||
# 创建文件流式生成器
|
||
async def file_stream():
|
||
async with aiofiles.open(file_path, "rb") as f:
|
||
while True:
|
||
chunk = await f.read(8192)
|
||
if not chunk:
|
||
break
|
||
yield chunk
|
||
|
||
# 创建StreamingResponse
|
||
response = StreamingResponse(
|
||
file_stream(),
|
||
media_type=media_type,
|
||
)
|
||
# 正确处理中文文件名的HTTP头部设置
|
||
try:
|
||
# 尝试使用ASCII编码（适用于英文文件名）
|
||
decoded_filename.encode("ascii")
|
||
# 如果成功，直接使用简单格式
|
||
response.headers["Content-Disposition"] = f'attachment; filename="{decoded_filename}"'
|
||
response.headers["Content-Length"] = str(file_size)
|
||
except UnicodeEncodeError:
|
||
# 如果包含非ASCII字符（如中文），使用RFC 2231格式
|
||
encoded_filename = quote(decoded_filename.encode("utf-8"))
|
||
response.headers["Content-Disposition"] = f"attachment; filename*=UTF-8''{encoded_filename}"
|
||
response.headers["Content-Length"] = str(file_size)
|
||
|
||
return response
|
||
|
||
except HTTPException:
|
||
raise
|
||
except Exception as e:
|
||
logger.error(f"下载文件失败: {e}, {traceback.format_exc()}")
|
||
raise HTTPException(status_code=500, detail=f"下载失败: {e}")
|
||
|
||
|
||
# =============================================================================
|
||
# === 查询分组 ===
|
||
# =============================================================================
|
||
|
||
|
||
@knowledge.post("/databases/{db_id}/query")
|
||
async def query_knowledge_base(
|
||
db_id: str, query: str = Body(...), meta: dict = Body(...), current_user: User = Depends(get_admin_user)
|
||
):
|
||
"""查询知识库"""
|
||
logger.debug(f"Query knowledge base {db_id}: {query}")
|
||
try:
|
||
result = await knowledge_base.aquery(query, db_id=db_id, **meta)
|
||
return {"result": result, "status": "success"}
|
||
except Exception as e:
|
||
logger.error(f"知识库查询失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"知识库查询失败: {e}", "status": "failed"}
|
||
|
||
|
||
@knowledge.post("/databases/{db_id}/query-test")
|
||
async def query_test(
|
||
db_id: str, query: str = Body(...), meta: dict = Body(...), current_user: User = Depends(get_admin_user)
|
||
):
|
||
"""测试查询知识库"""
|
||
logger.debug(f"Query test in {db_id}: {query}")
|
||
try:
|
||
result = await knowledge_base.aquery(query, db_id=db_id, **meta)
|
||
return result
|
||
except Exception as e:
|
||
logger.error(f"测试查询失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"测试查询失败: {e}", "status": "failed"}
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/query-params")
|
||
async def get_knowledge_base_query_params(db_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""获取知识库类型特定的查询参数"""
|
||
try:
|
||
# 获取数据库信息
|
||
db_info = knowledge_base.get_database_info(db_id)
|
||
if not db_info:
|
||
raise HTTPException(status_code=404, detail="Database not found")
|
||
|
||
kb_type = db_info.get("kb_type", "lightrag")
|
||
metadata = db_info.get("metadata", {}) or {}
|
||
reranker_config = metadata.get("reranker_config", {}) or {}
|
||
reranker_enabled = bool(reranker_config.get("enabled", False))
|
||
|
||
# 根据知识库类型返回不同的查询参数
|
||
if kb_type == "lightrag":
|
||
params = {
|
||
"type": "lightrag",
|
||
"options": [
|
||
{
|
||
"key": "mode",
|
||
"label": "检索模式",
|
||
"type": "select",
|
||
"default": "mix",
|
||
"options": [
|
||
{"value": "local", "label": "Local", "description": "上下文相关信息"},
|
||
{"value": "global", "label": "Global", "description": "全局知识"},
|
||
{"value": "hybrid", "label": "Hybrid", "description": "本地和全局混合"},
|
||
{"value": "naive", "label": "Naive", "description": "基本搜索"},
|
||
{"value": "mix", "label": "Mix", "description": "知识图谱和向量检索混合"},
|
||
],
|
||
},
|
||
{
|
||
"key": "only_need_context",
|
||
"label": "只使用上下文",
|
||
"type": "boolean",
|
||
"default": True,
|
||
"description": "只返回上下文，不生成回答",
|
||
},
|
||
{
|
||
"key": "only_need_prompt",
|
||
"label": "只使用提示",
|
||
"type": "boolean",
|
||
"default": False,
|
||
"description": "只返回提示，不进行检索",
|
||
},
|
||
{
|
||
"key": "top_k",
|
||
"label": "TopK",
|
||
"type": "number",
|
||
"default": 10,
|
||
"min": 1,
|
||
"max": 100,
|
||
"description": "返回的最大结果数量",
|
||
},
|
||
],
|
||
}
|
||
elif kb_type == "chroma":
|
||
top_k_default = reranker_config.get("final_top_k", 10)
|
||
params_list = [
|
||
{
|
||
"key": "top_k",
|
||
"label": "TopK",
|
||
"type": "number",
|
||
"default": top_k_default,
|
||
"min": 1,
|
||
"max": 100,
|
||
"description": "返回的最大结果数量",
|
||
},
|
||
{
|
||
"key": "similarity_threshold",
|
||
"label": "相似度阈值",
|
||
"type": "number",
|
||
"default": 0.0,
|
||
"min": 0.0,
|
||
"max": 1.0,
|
||
"step": 0.1,
|
||
"description": "过滤相似度低于此值的结果",
|
||
},
|
||
{
|
||
"key": "include_distances",
|
||
"label": "显示相似度",
|
||
"type": "boolean",
|
||
"default": True,
|
||
"description": "在结果中显示相似度分数",
|
||
},
|
||
{
|
||
"key": "use_reranker",
|
||
"label": "启用重排序",
|
||
"type": "boolean",
|
||
"default": reranker_enabled,
|
||
"description": "是否使用精排模型对检索结果进行重排序",
|
||
},
|
||
{
|
||
"key": "recall_top_k",
|
||
"label": "召回数量",
|
||
"type": "number",
|
||
"default": reranker_config.get("recall_top_k", 50),
|
||
"min": 10,
|
||
"max": 200,
|
||
"description": "启用重排序时向量检索的候选数量",
|
||
},
|
||
]
|
||
|
||
if config.reranker_names:
|
||
params_list.append(
|
||
{
|
||
"key": "reranker_model",
|
||
"label": "重排序模型",
|
||
"type": "select",
|
||
"default": reranker_config.get("model", ""),
|
||
"options": [
|
||
{"label": info.name, "value": model_id} for model_id, info in config.reranker_names.items()
|
||
],
|
||
"description": "覆盖默认配置，选择用于本次查询的重排序模型",
|
||
}
|
||
)
|
||
|
||
params = {"type": "chroma", "options": params_list}
|
||
elif kb_type == "milvus":
|
||
top_k_default = reranker_config.get("final_top_k", 10)
|
||
params_list = [
|
||
{
|
||
"key": "top_k",
|
||
"label": "TopK",
|
||
"type": "number",
|
||
"default": top_k_default,
|
||
"min": 1,
|
||
"max": 100,
|
||
"description": "返回的最大结果数量",
|
||
},
|
||
{
|
||
"key": "similarity_threshold",
|
||
"label": "相似度阈值",
|
||
"type": "number",
|
||
"default": 0.0,
|
||
"min": 0.0,
|
||
"max": 1.0,
|
||
"step": 0.1,
|
||
"description": "过滤相似度低于此值的结果",
|
||
},
|
||
{
|
||
"key": "include_distances",
|
||
"label": "显示相似度",
|
||
"type": "boolean",
|
||
"default": True,
|
||
"description": "在结果中显示相似度分数",
|
||
},
|
||
{
|
||
"key": "metric_type",
|
||
"label": "距离度量类型",
|
||
"type": "select",
|
||
"default": "COSINE",
|
||
"options": [
|
||
{"value": "COSINE", "label": "余弦相似度", "description": "适合文本语义相似度"},
|
||
{"value": "L2", "label": "欧几里得距离", "description": "适合数值型数据"},
|
||
{"value": "IP", "label": "内积", "description": "适合标准化向量"},
|
||
],
|
||
"description": "向量相似度计算方法",
|
||
},
|
||
{
|
||
"key": "use_reranker",
|
||
"label": "启用重排序",
|
||
"type": "boolean",
|
||
"default": reranker_enabled,
|
||
"description": "是否使用精排模型对检索结果进行重排序",
|
||
},
|
||
{
|
||
"key": "recall_top_k",
|
||
"label": "召回数量",
|
||
"type": "number",
|
||
"default": reranker_config.get("recall_top_k", 50),
|
||
"min": 10,
|
||
"max": 200,
|
||
"description": "启用重排序时向量检索的候选数量",
|
||
},
|
||
]
|
||
|
||
if config.reranker_names:
|
||
params_list.append(
|
||
{
|
||
"key": "reranker_model",
|
||
"label": "重排序模型",
|
||
"type": "select",
|
||
"default": reranker_config.get("model", ""),
|
||
"options": [
|
||
{"label": info.name, "value": model_id} for model_id, info in config.reranker_names.items()
|
||
],
|
||
"description": "覆盖默认配置，选择用于本次查询的重排序模型",
|
||
}
|
||
)
|
||
|
||
params = {"type": "milvus", "options": params_list}
|
||
else:
|
||
# 未知类型，返回基本参数
|
||
params = {
|
||
"type": "unknown",
|
||
"options": [
|
||
{
|
||
"key": "top_k",
|
||
"label": "TopK",
|
||
"type": "number",
|
||
"default": 10,
|
||
"min": 1,
|
||
"max": 100,
|
||
"description": "返回的最大结果数量",
|
||
}
|
||
],
|
||
}
|
||
|
||
return {"params": params, "message": "success"}
|
||
|
||
except Exception as e:
|
||
logger.error(f"获取知识库查询参数失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"获取知识库查询参数失败 {e}", "params": {}}
|
||
|
||
|
||
# =============================================================================
|
||
# === AI生成示例问题 ===
|
||
# =============================================================================
|
||
|
||
|
||
SAMPLE_QUESTIONS_SYSTEM_PROMPT = """你是一个专业的知识库问答测试专家。
|
||
|
||
你的任务是根据知识库中的文件列表，生成有价值的测试问题。
|
||
|
||
要求：
|
||
1. 问题要具体、有针对性，基于文件名称和类型推测可能的内容
|
||
2. 问题要涵盖不同方面和难度
|
||
3. 问题要简洁明了，适合用于检索测试
|
||
4. 问题要多样化，包括事实查询、概念解释、操作指导等
|
||
5. 问题长度控制在10-30字之间
|
||
6. 直接返回JSON数组格式，不要其他说明
|
||
|
||
返回格式：
|
||
```json
|
||
{
|
||
"questions": [
|
||
"问题1？",
|
||
"问题2？",
|
||
"问题3？"
|
||
]
|
||
}
|
||
```
|
||
"""
|
||
|
||
|
||
@knowledge.post("/databases/{db_id}/sample-questions")
|
||
async def generate_sample_questions(
|
||
db_id: str,
|
||
request_body: dict = Body(...),
|
||
current_user: User = Depends(get_admin_user),
|
||
):
|
||
"""
|
||
AI生成针对知识库的测试问题
|
||
|
||
Args:
|
||
db_id: 知识库ID
|
||
request_body: 请求体，包含 count 字段
|
||
|
||
Returns:
|
||
生成的问题列表
|
||
"""
|
||
try:
|
||
from src.models import select_model
|
||
import json
|
||
|
||
# 从请求体中提取参数
|
||
count = request_body.get("count", 10)
|
||
|
||
# 获取知识库信息
|
||
db_info = knowledge_base.get_database_info(db_id)
|
||
if not db_info:
|
||
raise HTTPException(status_code=404, detail=f"知识库 {db_id} 不存在")
|
||
|
||
db_name = db_info.get("name", "")
|
||
all_files = db_info.get("files", {})
|
||
|
||
if not all_files:
|
||
raise HTTPException(status_code=400, detail="知识库中没有文件")
|
||
|
||
# 收集文件信息
|
||
files_info = []
|
||
for file_id, file_info in all_files.items():
|
||
files_info.append(
|
||
{
|
||
"filename": file_info.get("filename", ""),
|
||
"type": file_info.get("type", ""),
|
||
}
|
||
)
|
||
|
||
# 构建AI提示词
|
||
system_prompt = SAMPLE_QUESTIONS_SYSTEM_PROMPT
|
||
|
||
# 构建用户消息
|
||
files_text = "\n".join(
|
||
[
|
||
f"- {f['filename']} ({f['type']})"
|
||
for f in files_info[:20] # 最多列举20个文件
|
||
]
|
||
)
|
||
|
||
file_count_text = f"（共{len(files_info)}个文件）" if len(files_info) > 20 else ""
|
||
|
||
user_message = textwrap.dedent(f"""请为知识库"{db_name}"生成{count}个测试问题。
|
||
|
||
知识库文件列表{file_count_text}：
|
||
{files_text}
|
||
|
||
请根据这些文件的名称和类型，生成{count}个有价值的测试问题。""")
|
||
|
||
# 调用AI生成
|
||
logger.info(f"开始生成知识库问题，知识库: {db_name}, 文件数量: {len(files_info)}, 问题数量: {count}")
|
||
|
||
# 选择模型并调用
|
||
model = select_model()
|
||
messages = [{"role": "system", "content": system_prompt}, {"role": "user", "content": user_message}]
|
||
response = model.call(messages, stream=False)
|
||
|
||
# 解析AI返回的JSON
|
||
try:
|
||
# 提取JSON内容
|
||
content = response.content if hasattr(response, "content") else str(response)
|
||
|
||
# 尝试从markdown代码块中提取JSON
|
||
if "```json" in content:
|
||
json_start = content.find("```json") + 7
|
||
json_end = content.find("```", json_start)
|
||
content = content[json_start:json_end].strip()
|
||
elif "```" in content:
|
||
json_start = content.find("```") + 3
|
||
json_end = content.find("```", json_start)
|
||
content = content[json_start:json_end].strip()
|
||
|
||
questions_data = json.loads(content)
|
||
questions = questions_data.get("questions", [])
|
||
|
||
if not questions or not isinstance(questions, list):
|
||
raise ValueError("AI返回的问题格式不正确")
|
||
|
||
logger.info(f"成功生成{len(questions)}个问题")
|
||
|
||
# 保存问题到知识库元数据
|
||
try:
|
||
async with knowledge_base._metadata_lock:
|
||
# 确保知识库元数据存在
|
||
if db_id not in knowledge_base.global_databases_meta:
|
||
knowledge_base.global_databases_meta[db_id] = {}
|
||
# 保存问题到对应知识库
|
||
knowledge_base.global_databases_meta[db_id]["sample_questions"] = questions
|
||
knowledge_base._save_global_metadata()
|
||
logger.info(f"成功保存 {len(questions)} 个问题到知识库 {db_id}")
|
||
except Exception as save_error:
|
||
logger.error(f"保存问题失败: {save_error}")
|
||
|
||
return {
|
||
"message": "success",
|
||
"questions": questions,
|
||
"count": len(questions),
|
||
"db_id": db_id,
|
||
"db_name": db_name,
|
||
}
|
||
|
||
except json.JSONDecodeError as e:
|
||
logger.error(f"AI返回的JSON解析失败: {e}, 原始内容: {content}")
|
||
raise HTTPException(status_code=500, detail=f"AI返回格式错误: {str(e)}")
|
||
|
||
except HTTPException:
|
||
raise
|
||
except Exception as e:
|
||
logger.error(f"生成知识库问题失败: {e}, {traceback.format_exc()}")
|
||
raise HTTPException(status_code=500, detail=f"生成问题失败: {str(e)}")
|
||
|
||
|
||
@knowledge.get("/databases/{db_id}/sample-questions")
|
||
async def get_sample_questions(db_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""
|
||
获取知识库的测试问题
|
||
|
||
Args:
|
||
db_id: 知识库ID
|
||
|
||
Returns:
|
||
问题列表
|
||
"""
|
||
try:
|
||
# 直接从全局元数据中读取
|
||
if db_id not in knowledge_base.global_databases_meta:
|
||
raise HTTPException(status_code=404, detail=f"知识库 {db_id} 不存在")
|
||
|
||
db_meta = knowledge_base.global_databases_meta[db_id]
|
||
questions = db_meta.get("sample_questions", [])
|
||
|
||
if not questions:
|
||
raise HTTPException(status_code=404, detail="该知识库还没有生成测试问题")
|
||
|
||
return {
|
||
"message": "success",
|
||
"questions": questions,
|
||
"count": len(questions),
|
||
"db_id": db_id,
|
||
}
|
||
|
||
except HTTPException:
|
||
raise
|
||
except Exception as e:
|
||
logger.error(f"获取知识库问题失败: {e}, {traceback.format_exc()}")
|
||
raise HTTPException(status_code=500, detail=f"获取问题失败: {str(e)}")
|
||
|
||
|
||
# =============================================================================
|
||
# === 文件管理分组 ===
|
||
# =============================================================================
|
||
|
||
|
||
@knowledge.post("/files/upload")
|
||
async def upload_file(
|
||
file: UploadFile = File(...),
|
||
db_id: str | None = Query(None),
|
||
allow_jsonl: bool = Query(False),
|
||
current_user: User = Depends(get_admin_user),
|
||
):
|
||
"""上传文件"""
|
||
if not file.filename:
|
||
raise HTTPException(status_code=400, detail="No selected file")
|
||
|
||
logger.debug(f"Received upload file with filename: {file.filename}")
|
||
|
||
ext = os.path.splitext(file.filename)[1].lower()
|
||
|
||
if ext == ".jsonl":
|
||
if allow_jsonl is not True or db_id is not None:
|
||
raise HTTPException(status_code=400, detail=f"Unsupported file type: {ext}")
|
||
elif not (is_supported_file_extension(file.filename) or ext == ".zip"):
|
||
raise HTTPException(status_code=400, detail=f"Unsupported file type: {ext}")
|
||
|
||
basename, ext = os.path.splitext(file.filename)
|
||
# 直接使用原始文件名（小写）
|
||
filename = f"{basename}{ext}".lower()
|
||
|
||
file_bytes = await file.read()
|
||
|
||
content_hash = await calculate_content_hash(file_bytes)
|
||
|
||
file_exists = await knowledge_base.file_existed_in_db(db_id, content_hash)
|
||
if file_exists:
|
||
raise HTTPException(
|
||
status_code=409,
|
||
detail="数据库中已经存在了相同内容文件，File with the same content already exists in this database",
|
||
)
|
||
|
||
# 直接上传到MinIO，添加时间戳区分版本
|
||
import time
|
||
timestamp = int(time.time() * 1000)
|
||
minio_filename = f"{basename}_{timestamp}{ext}"
|
||
|
||
# 生成符合MinIO规范的存储桶名称（将下划线替换为连字符）
|
||
if db_id:
|
||
bucket_name = f"ref-{db_id.replace('_', '-')}"
|
||
else:
|
||
bucket_name = "default-uploads"
|
||
|
||
# 上传到MinIO
|
||
minio_url = await aupload_file_to_minio(bucket_name, minio_filename, file_bytes, ext.lstrip('.'))
|
||
|
||
# 检测同名文件（基于原始文件名）
|
||
same_name_files = await knowledge_base.get_same_name_files(db_id, filename)
|
||
has_same_name = len(same_name_files) > 0
|
||
|
||
return {
|
||
"message": "File successfully uploaded",
|
||
"file_path": minio_url, # MinIO路径作为主要路径
|
||
"minio_path": minio_url, # MinIO路径
|
||
"db_id": db_id,
|
||
"content_hash": content_hash,
|
||
"filename": filename, # 原始文件名（小写）
|
||
"original_filename": basename, # 原始文件名（去掉后缀）
|
||
"minio_filename": minio_filename, # MinIO中的文件名（带时间戳）
|
||
"bucket_name": bucket_name, # MinIO存储桶名称
|
||
"same_name_files": same_name_files, # 同名文件列表
|
||
"has_same_name": has_same_name # 是否包含同名文件标志
|
||
}
|
||
|
||
|
||
@knowledge.get("/files/supported-types")
|
||
async def get_supported_file_types(current_user: User = Depends(get_admin_user)):
|
||
"""获取当前支持的文件类型"""
|
||
return {"message": "success", "file_types": sorted(SUPPORTED_FILE_EXTENSIONS)}
|
||
|
||
|
||
@knowledge.post("/files/markdown")
|
||
async def mark_it_down(file: UploadFile = File(...), current_user: User = Depends(get_admin_user)):
|
||
"""调用 src.knowledge.indexing 下面的 process_file_to_markdown 解析为 markdown，参数是文件，需要管理员权限"""
|
||
try:
|
||
content = await file.read()
|
||
markdown_content = await process_file_to_markdown(content)
|
||
return {"markdown_content": markdown_content, "message": "success"}
|
||
except Exception as e:
|
||
logger.error(f"文件解析失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"文件解析失败 {e}", "markdown_content": ""}
|
||
|
||
|
||
# =============================================================================
|
||
# === 知识库类型分组 ===
|
||
# =============================================================================
|
||
|
||
|
||
@knowledge.get("/types")
|
||
async def get_knowledge_base_types(current_user: User = Depends(get_admin_user)):
|
||
"""获取支持的知识库类型"""
|
||
try:
|
||
kb_types = knowledge_base.get_supported_kb_types()
|
||
return {"kb_types": kb_types, "message": "success"}
|
||
except Exception as e:
|
||
logger.error(f"获取知识库类型失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"获取知识库类型失败 {e}", "kb_types": {}}
|
||
|
||
|
||
@knowledge.get("/stats")
|
||
async def get_knowledge_base_statistics(current_user: User = Depends(get_admin_user)):
|
||
"""获取知识库统计信息"""
|
||
try:
|
||
stats = knowledge_base.get_statistics()
|
||
return {"stats": stats, "message": "success"}
|
||
except Exception as e:
|
||
logger.error(f"获取知识库统计失败 {e}, {traceback.format_exc()}")
|
||
return {"message": f"获取知识库统计失败 {e}", "stats": {}}
|
||
|
||
|
||
# =============================================================================
|
||
# === Embedding模型状态检查分组 ===
|
||
# =============================================================================
|
||
|
||
|
||
@knowledge.get("/embedding-models/{model_id}/status")
|
||
async def get_embedding_model_status(model_id: str, current_user: User = Depends(get_admin_user)):
|
||
"""获取指定embedding模型的状态"""
|
||
logger.debug(f"Checking embedding model status: {model_id}")
|
||
try:
|
||
status = await test_embedding_model_status(model_id)
|
||
return {"status": status, "message": "success"}
|
||
except Exception as e:
|
||
logger.error(f"获取embedding模型状态失败 {model_id}: {e}, {traceback.format_exc()}")
|
||
return {
|
||
"message": f"获取embedding模型状态失败: {e}",
|
||
"status": {"model_id": model_id, "status": "error", "message": str(e)},
|
||
}
|
||
|
||
|
||
@knowledge.get("/embedding-models/status")
|
||
async def get_all_embedding_models_status(current_user: User = Depends(get_admin_user)):
|
||
"""获取所有embedding模型的状态"""
|
||
logger.debug("Checking all embedding models status")
|
||
try:
|
||
status = await test_all_embedding_models_status()
|
||
return {"status": status, "message": "success"}
|
||
except Exception as e:
|
||
logger.error(f"获取所有embedding模型状态失败: {e}, {traceback.format_exc()}")
|
||
return {"message": f"获取所有embedding模型状态失败: {e}", "status": {"models": {}, "total": 0, "available": 0}}
|